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ANALOG MULTIPLEXERS /DEMULTIPLEXERS

The UTC 4052 analog multiplexers is digitally –controlled analog switch The device feature low ON impedance and very low OFF leakage current Control of analog signals up to the complete supply voltage range can be achieved

FEATURES

*Triple Diode Protection on Control Inputs *Switch Function is Break Before Make *Supply Voltage Range=3.0 Vdc to 18 Vdc *Analog Voltage Range(VDD-VEE)=3.0 to 18V

*Note:VEE must be≤Vss

*Linearized Transfer Characterisstics *Low-noise-12nV/√Cycle ,f≥1.0kHz Typical

DIP-16 SOP-16

ABSOLUTE MAXIMUM RATINGS*1

DC Supply Voltage (Referenced to VEE,Vss≥VEE) VDD -0.5 ~ +18.0 V Input or Output Voltage (DC or Transient) (Referenced to

Vss for Control Inputs and VEE for switch I/O) Vin,Vout -0.5 ~ V

*1 Maximum Ratings are those values beyond which damage to the device may occur *2 Temperature Derating : 7.0 mW/℃ From 65℃ ~ 125℃

Note: Control Inputs referenced to Vss.

Analog Inputs and Outputs reference to VEE VEE must be <Vss.

ELECTRICAL CHARACTERISTICS

-55°C 25°C 125°C PARAMETER SYMBOL TEST CONDITIONS

MIN MAX MIN TYP*3 MAX MIN MAX UNIT

SUPPLY REQUIREMENTS (Voltages Referenced to VEE)

Power Current Per

Input Leakage

-5±0.1 1.0 µA

SWITCHES IN/OUT AND COMMONS OUT/IN –X,Y,Z(Voltages Referenced to VEE)

ON Resistance Ron △Vswitch≤500mV *4

Current(Figure 8) Ioff V(Control) Channel to DD=15V ,Vin=VIL or VIH Channel or Any One

*4 For voltage drops across the switch (△Vswitch) > 600 mV ( > 300 mV at high temperature), excessive VDD

*current may be drawn, i.e the current out of the switch may contain both VDD and switch input components The

*reliability of the device will be unaffected unless the Maximum Ratings are exceeded (See first page of this data

*sheet.)

ELECTRICAL CHARACTERISTICS *5

(CL = 50 pF, TA = 25℃) (VEE ≤VSS unless otherwise indicated)

Output”1” or “0” to High Impedance, or High Impedance to”1” or “0” Level Crosstalk ,Control Input

to Common O/I (Figure *5 The formulas given are for the typical characteristics only at 25 ℃

*6 Data labelled “Typ” is not lo be used for design purposes but In intended as an indication of the IC’s potential

*performance

A,B,and C inputs used to tum ON or OFF the switch under tes.

Figure 6 Channel Separation (Adjacent Channels Used For Setup)

Figure A illustrates use of the on–chip level converter detailed in Figures 2 The 0 ~ 5 V Digital Control signal is used to directly control a 9 Vp–p analog signal

The digital control logic levels are determined by VDD and VSS The VDD voltage is the logic high voltage; the VSS

voltage is logic low For the example, VDD = + 5 V = logic high at the control inputs; VSS = GND = 0 V = logic low The maximum analog signal level is determined by VDD and VEE The VDD voltage determines the maximum recommended peak above VSS The VEE voltage determines the maximum swing below VSS For the example, VDD – VSS = 5 V maximum swing above VSS; VSS – VEE = 5 V maximum swing below VSS The example shows a ± 4.5 V signal which allows a 1/2 volt margin at each peak If voltage transients above VDD and/or below VEE are anticipated on the analog channels, external diodes (Dx) are recommended as shown in Figure B These diodes should be small signal types able to absorb the maximum anticipated current surges during clipping

The absolute maximum potential difference between VDD and VEE is 18.0 V Most parameters are specified up to

15 V which is the recommended maximum difference between VDD and VEE

Balanced supplies are not required However, VSS must be greater than or equal to VEE For example, VDD = + 10 V, VSS = + 5 V, and VEE – 3 V is acceptable See the Table below

Figure B.External G ermanium or Schottky Clipping Diodes

POSSIBLE SUPPLY CONNECTIONS